The repair kit that was bought for this phone came with the wrong size torx bit. Mine came with a T5 Torx which was bigger and I almost ruined the screw. I noticed it was not working and looked at the bit and in fact it was not the T3. Luckily I have the full kit and had a T3 Torx handy. Make sure to look at the Bits before using them. The screws are so fragile that they can get stripped easily.

One simple method I use to remove the battery. After heating up the back of the phone, I use an old gift card and insert it through the side of the battery and since its larger and flexible your able to reach the strips of glue underneath the battery and loosen it from the battery. A lot safer than pulling and togging at the battery from the top and the potential risk of puncturing it . Just make sure to look for locations that have any circuits underneath the battery and avoid those spots. Works well for any other phones or tablets. I used it on this phone and only needed to heat it up once. Hope this helps someone.